通道扰动对神经元网络动力学行为的影响  

EFFECT OF CHANNEL GAUSS NOISE ON THE NEURONAL NETWORK DYNAMIC BEHAVIORS

作　　者：刘少宝[1] 吴莹[1] 

机构地区：[1]西安理工大学理学院,西安710048

出　　处：《动力学与控制学报》2010年第3期284-288,共5页Journal of Dynamics and Control

基　　金：国家自然科学基金资助项目(10972179;10772140;10872155)~~

摘　　要：利用Hodgkin-Huxley(H-H)神经元数学模型,研究高斯白噪声通过通道扰动对神经网络时空动力学行为的影响.相同参数条件下,比较外激励噪声与通道扰动对神经元网络各种时空斑图的影响,发现通道扰动更有利于神经元网络时空斑图之间的转换和螺旋波的形成.最后,进一步分析了温度和耦合强度对神经网络时空动力学行为的影响.The spatiotemporal patterns of Hodgkin-Huxley neuronal networks induced by external gauss noise and channel gauss noise were investigated. And the dynamic behaviors of Hodgkin-Huxley neuronal networks under different noise were compared. It is found that the channel gauss noise is more conducive to the transformation of spatiotemporal patterns and the formation of spiral wave in neuronal network. Finally, the effect of temperatures and coupling coefficients on spatiotemporal dynamics of neural network was further analyzed.

关 键 词：外激励噪声 通道扰动 神经网络 时空斑图 

分 类 号：Q42[生物学—神经生物学]